The invention relates to an inhibitor of dimethylarginine dimethylaminohydrolase (DDAH) of general structural formula (I), wherein B is a branched or unbranched, substituted or non-substituted, saturated or unsaturated hydrocarbon chain having a chain length of 1 to 6 and/or a substituted or non-substituted aromatic system having a ring size of 3 to 6; R1 is selected from the group of structures (i-vii), wherein R2, R3 and R4 are selected from the group consisting of hydrogen, an alkyl or aryl radical, R5 and R6 are selected from the group consisting of hydrogen, a hydrocarbon chain having a chain length of 1 to 8 and an aryl radical, R7, R8, R9 and R10 are selected from the group consisting of hydrogen, and alkyl or aryl radical; W is oxygen (O) or nitrogen (N); and X is a methylene group (CH2) or a secondary amino group (NH); Y is a branched or unbranched, substituted or non-substituted, saturated or unsaturated hydrocarbon chain having a chain length of 1 to 6 and/or a substituted or non-substituted aromatic system having a ring size of 3 to 6; Z is hydrogen (H) or a methoxyl group; and the radical (B) carrying the amino group has no carboxyl group.